It is, but that's not the route they took. Another registered party (the Republican Party of Alberta) received the information legally, then shared it all with this group (likely illegally or at least against some rules). There's now speculation that the separatist group used it to add names to their petition since they required X number of signatures. For example, the group has claimed some communities had over 90% of electors sign the petition. Which most people would claim is really hard to physically do and also counter to the general polling in the province that finds about 25% of citizens support separation.

So... the far right pro-Trump separatists in Alberta suddenly have name , address and phone number of any "woke" they want to harass.

What can go wrong...